Across
- 2. the point that divides the area under a density curve in half
- 5. the ___ distribution determines the probability until the first success occurs
- 8. the shape of a distribution if one side of the graph is much longer than the other
- 9. neither the subject no those measuring the response know which treatment a subject received (two words)
- 12. the coefficient of ____ indicates the percent of variability in the y values that can be explained by the regression on x
- 13. the ____ coefficient describes the strength and direction of a linear relationship
- 14. actual value minus predicted value
- 16. the average distance of observations from their mean (two words)
- 18. a graphical display of the five number summary
- 19. if the occurrence of one event has no effect on the chance that another event will happen, the two events are ___
- 20. a "fake" treatment that is sometimes used in experiments
- 22. If a normal probability plot shows a ____ pattern, the data are approximately normal
Down
- 1. when you combine independent random variables, you always add these
- 3. the mean of a discrete random variable, the average value in the long run is the ___ value
- 4. two events that have no outcomes in common and can never occur together (two words)
- 6. the area under any density curve is always equal to ___
- 7. measure of center, also called the arithmetic average
- 10. the rule used to assign experimental units to treatments is ____ assignment
- 11. the entire group of individuals about which we want information
- 15. the ____ normal distribution has mean 0 and standard deviation 1
- 17. a value that is at least 1.5 IQRs above the third quartile or below the first quartile
- 21. a study that systematically favors certain outcomes shows this